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Perfect Square and Odd Puzzle (Posted on 2016-10-04) Difficulty: 3 of 5
Each of X and Y is an odd positive integer and
X2 - Y2 + 1 divides Y2 - 1.

Is X2 - Y2 + 1 a perfect square for every possible pair of (X,Y)?
If so, prove it.
If not, provide a counterexample.

No Solution Yet Submitted by K Sengupta    
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  Subject Author Date
Some ThoughtsPossible solutionbroll2016-10-05 04:13:49
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